Oregon Civil Engineering Exam Practice
Questions And Correct Answers
(Verified Answers) Plus Rationale 2027
Q&A| Instant Download Pdf.
1. In the design of a reinforced concrete beam subjected to flexural
loading, the primary purpose of the longitudinal tension
reinforcement is to:
A. Increase the concrete’s resistance to compression
B. Prevent all shear deformation
C. Resist tensile stresses that develop as the beam bends
D. Eliminate the need for concrete cover
When a reinforced concrete beam bends under load, concrete primarily
resists compression while reinforcing steel carries much of the resulting
tensile force, allowing the composite section to resist flexure effectively.
2. A simply supported beam carries a uniformly distributed load over its
entire span. Compared with a concentrated load at midspan having
the same total magnitude, the uniformly distributed load generally
produces:
A. Zero bending moment
B. A different shear and moment distribution along the span
C. Only axial compression
D. No support reactions
,A distributed load produces continuously varying shear and bending
moment diagrams, whereas a concentrated load creates different internal-
force distributions even when the total applied load is the same.
3. A structural engineer is evaluating a reinforced concrete column
subjected primarily to axial compression. Which failure mode should
receive particular attention when the column is relatively slender?
A. Soil liquefaction
B. Buckling and second-order effects
C. Thermal radiation
D. Pipe cavitation
Slender columns can experience lateral deflection and additional moments
under axial load, making stability and second-order effects important
design considerations.
4. A steel beam is subjected to a bending moment that causes
compression in its top flange. If the compression flange is
inadequately braced, which instability phenomenon may become
critical?
A. Punching shear
B. Lateral-torsional buckling
C. Hydraulic jump
D. Bearing failure of concrete
An inadequately braced compression flange can move laterally and twist
the beam, producing lateral-torsional buckling and reducing its flexural
capacity.
5. A reinforced concrete slab spans primarily in one direction between
two supporting walls. Under typical loading, the slab should be
analyzed primarily as:
A. A two-way membrane
B. A one-way slab
,C. A compression-only column
D. A deep foundation
A slab that primarily transfers load across its shorter span to two opposite
supports behaves predominantly as a one-way structural member.
6. A two-way reinforced concrete slab is supported along all four sides
and has comparable spans in both directions. The applied load is
primarily transferred:
A. Only through the shorter edge
B. Only through the longer edge
C. In both principal directions toward the supporting members
D. Directly into the soil without structural action
Two-way slabs distribute loads in both directions because their geometry
and support conditions permit significant flexural action along both axes.
7. A reinforced concrete flat plate is supported directly by columns
without beams. Which failure mode requires particular attention
around the column supports?
A. Lateral-torsional buckling
B. Punching shear
C. Pipe surge
D. Soil erosion
Concentrated column reactions can produce high localized shear stresses
around the supports, making punching shear a critical design consideration
for flat plates.
8. A structural engineer determines the factored shear force in a
reinforced concrete beam exceeds the capacity provided by the
concrete alone. Which measure can directly increase the beam’s shear
resistance?
, A. Removing longitudinal reinforcement
B. Providing appropriately designed shear reinforcement such as stirrups
C. Reducing beam depth
D. Eliminating concrete cover
Shear reinforcement, commonly in the form of stirrups, provides additional
resistance to diagonal tension and shear forces when concrete capacity
alone is insufficient.
9. A steel tension member is connected using bolts through a plate.
When evaluating the connection, which potential limit state should be
considered in addition to bolt shear?
A. Concrete creep only
B. Net-section tension failure of the connected plate
C. Soil consolidation
D. Pavement rutting
The connected plate can fracture through its reduced net section after bolt
holes are deducted, so net-section tension is an important connection limit
state.
10. A welded structural connection contains incomplete fusion
between the weld metal and base metal. Why is this condition
significant?
A. It always increases fatigue strength
B. It can reduce the effective load-transfer capacity and create a potential
defect
C. It eliminates residual stress
D. It improves ductility in every circumstance
Incomplete fusion can prevent the weld from developing its intended
strength and may provide a location for crack initiation or propagation.
Questions And Correct Answers
(Verified Answers) Plus Rationale 2027
Q&A| Instant Download Pdf.
1. In the design of a reinforced concrete beam subjected to flexural
loading, the primary purpose of the longitudinal tension
reinforcement is to:
A. Increase the concrete’s resistance to compression
B. Prevent all shear deformation
C. Resist tensile stresses that develop as the beam bends
D. Eliminate the need for concrete cover
When a reinforced concrete beam bends under load, concrete primarily
resists compression while reinforcing steel carries much of the resulting
tensile force, allowing the composite section to resist flexure effectively.
2. A simply supported beam carries a uniformly distributed load over its
entire span. Compared with a concentrated load at midspan having
the same total magnitude, the uniformly distributed load generally
produces:
A. Zero bending moment
B. A different shear and moment distribution along the span
C. Only axial compression
D. No support reactions
,A distributed load produces continuously varying shear and bending
moment diagrams, whereas a concentrated load creates different internal-
force distributions even when the total applied load is the same.
3. A structural engineer is evaluating a reinforced concrete column
subjected primarily to axial compression. Which failure mode should
receive particular attention when the column is relatively slender?
A. Soil liquefaction
B. Buckling and second-order effects
C. Thermal radiation
D. Pipe cavitation
Slender columns can experience lateral deflection and additional moments
under axial load, making stability and second-order effects important
design considerations.
4. A steel beam is subjected to a bending moment that causes
compression in its top flange. If the compression flange is
inadequately braced, which instability phenomenon may become
critical?
A. Punching shear
B. Lateral-torsional buckling
C. Hydraulic jump
D. Bearing failure of concrete
An inadequately braced compression flange can move laterally and twist
the beam, producing lateral-torsional buckling and reducing its flexural
capacity.
5. A reinforced concrete slab spans primarily in one direction between
two supporting walls. Under typical loading, the slab should be
analyzed primarily as:
A. A two-way membrane
B. A one-way slab
,C. A compression-only column
D. A deep foundation
A slab that primarily transfers load across its shorter span to two opposite
supports behaves predominantly as a one-way structural member.
6. A two-way reinforced concrete slab is supported along all four sides
and has comparable spans in both directions. The applied load is
primarily transferred:
A. Only through the shorter edge
B. Only through the longer edge
C. In both principal directions toward the supporting members
D. Directly into the soil without structural action
Two-way slabs distribute loads in both directions because their geometry
and support conditions permit significant flexural action along both axes.
7. A reinforced concrete flat plate is supported directly by columns
without beams. Which failure mode requires particular attention
around the column supports?
A. Lateral-torsional buckling
B. Punching shear
C. Pipe surge
D. Soil erosion
Concentrated column reactions can produce high localized shear stresses
around the supports, making punching shear a critical design consideration
for flat plates.
8. A structural engineer determines the factored shear force in a
reinforced concrete beam exceeds the capacity provided by the
concrete alone. Which measure can directly increase the beam’s shear
resistance?
, A. Removing longitudinal reinforcement
B. Providing appropriately designed shear reinforcement such as stirrups
C. Reducing beam depth
D. Eliminating concrete cover
Shear reinforcement, commonly in the form of stirrups, provides additional
resistance to diagonal tension and shear forces when concrete capacity
alone is insufficient.
9. A steel tension member is connected using bolts through a plate.
When evaluating the connection, which potential limit state should be
considered in addition to bolt shear?
A. Concrete creep only
B. Net-section tension failure of the connected plate
C. Soil consolidation
D. Pavement rutting
The connected plate can fracture through its reduced net section after bolt
holes are deducted, so net-section tension is an important connection limit
state.
10. A welded structural connection contains incomplete fusion
between the weld metal and base metal. Why is this condition
significant?
A. It always increases fatigue strength
B. It can reduce the effective load-transfer capacity and create a potential
defect
C. It eliminates residual stress
D. It improves ductility in every circumstance
Incomplete fusion can prevent the weld from developing its intended
strength and may provide a location for crack initiation or propagation.
